Determination of Chip Compression Ratio for the Orthogonal Cutting Process
<p>Methodological scheme for determining the chip compression ratio.</p> "> Figure 2
<p>Experimental setup for the realization of the orthogonal cutting process.</p> "> Figure 3
<p>Metallographic slice to determine chip thickness and chip structure: (<b>a</b>) metallographic slice; (<b>b</b>) chip microstructure.</p> "> Figure 4
<p>Relationship between measured cutting force component and depth of cut.</p> "> Figure 5
<p>Initial geometry, boundary conditions, and mesh of the FE cutting model.</p> "> Figure 6
<p>Dependence of measured cutting force components on cutting speed at different tool rake angles: (<b>a</b>) variation of cutting force <span class="html-italic">F<sub>X</sub></span>; (<b>b</b>) variation of thrust force <span class="html-italic">F<sub>Z</sub></span>.</p> "> Figure 7
<p>Effect of cutting speed on chip compression ratio and true final shear of machined material at different tool rake angles: (<b>a</b>) chip compression ratio; (<b>b</b>) true final shear.</p> "> Figure 8
<p>Results of analytical determination of chip compression ratio: (<b>a</b>) cutting speed effect on analytically determined chip compression ratio values at different tool rake angles; (<b>b</b>) deviation between measured and analytically calculated chip compression ratio values.</p> "> Figure 9
<p>Results of the first iteration for the DOE sensitivity analysis: (<b>a</b>) at a tool rake angle of −10°; (<b>b</b>) at a tool rake angle of 10°.</p> "> Figure 10
<p>Effect analysis of hardening term parameters on chip compression ratio: (<b>a</b>) effect of parameter A at tool rake angle of 0°; (<b>b</b>) effect of parameter A at all studied tool rake angles simultaneously; (<b>c</b>) effect of parameter B at tool rake angle of 0°; (<b>d</b>) effect of parameter B at all studied tool rake angles simultaneously; (<b>e</b>) effect of parameter n at tool rake angle of 0°; (<b>f</b>) effect of parameter n at all studied tool rake angles simultaneously.</p> "> Figure 11
<p>Effect analysis of strain rate term parameter on chip compression ratio: (<b>a</b>) effect of parameter C at a tool rake angle of 0°; (<b>b</b>) effect of parameter C at all studied tool rake angles simultaneously.</p> "> Figure 12
<p>Effect analysis of thermic term parameter on chip compression ratio: (<b>a</b>) effect of parameter m at a tool rake angle of 0°; (<b>b</b>) effect of parameter m at all studied tool rake angles simultaneously.</p> "> Figure 13
<p>Results of the secondary iteration of the simulated chip compression ratio at different tool rake angles: (<b>a</b>) tool rake angle is −10°; (<b>b</b>) tool rake angle is 0°; (<b>c</b>) tool rake angle is 10°.</p> "> Figure 14
<p>Results comparing simulated and measured chip compression ratio values for different cutting speeds and tool rake angles: (<b>a)</b> tool rake angle <span class="html-italic">γ</span> = −10°; (<b>b</b>) tool rake angle <span class="html-italic">γ</span> = 0°; (<b>c</b>) tool rake angle <span class="html-italic">γ</span> = 10°.</p> "> Figure 15
<p>Contrasting experimental, calculated, and simulated values of shear angle for different cutting speeds and rake angles: (<b>a</b>) tool rake angle is −10°; (<b>b</b>) tool rake angle is 0°; (<b>c</b>) tool rake angle is =10°.</p> ">
Abstract
:1. Introduction
2. Determination of Chip Compression Ratio
- ➢
- Experimental methods;
- ➢
- Calculation methods;
- ➢
- Numerical modeling methods.
3. Materials and Methods
3.1. Materials
3.2. Methods
3.2.1. Analytical Determination of Chip Compression Ratio
3.2.2. Numerical Modeling of Chip Compression Ratio
4. Results and Discussion
5. Conclusions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Material | Strength (MPa) | Elastic Modulus (GPa) | Elongation (%) | Hard-ness | Poisson′s Ratio | Specific Heat (J/kg·K) | Thermal Expansion (µm/m·°C) | Thermal Conductivity (W/m·K) | |
---|---|---|---|---|---|---|---|---|---|
Tensile | Yield | ||||||||
AISI 1045 | 690 | 620 | 206 | 12 | HB 180 | 0.29 | 486 | 14 | 49.8 |
SNMG-SM-1105 | - | - | 650 | - | HRC 76 | 0.25 | 251 | - | 59 |
Method | Parameters of Constitutive Equation | Friction Parameters in Cutting Zones | ||||||
---|---|---|---|---|---|---|---|---|
Secondary Zone | Tertiary Zone | |||||||
A [MPa] | B [MPa] | n [-] | C [-] | m [-] | Plastic Area, fRFp [-] | Elastic Area, fRFe [-] | fCF [-] | |
Jaspers, Dautzenberg [82] | 553 | 601 | 0.234 | 0.0134 | 1 | 0.753 | 0.345 | 0.672 |
Thimm et al. [83] | 492 | 585 | 0.1677 | 0.0088 | 1.2162 | |||
Initial model | 495.9 | 592.6 | 0.2035 | 0.01732 | 0.95 |
A [MPa] | B [MPa] | n [-] | C [-] | m [-] | |||||
---|---|---|---|---|---|---|---|---|---|
Upper Limit | Lower Limit | Upper Limit | Lower Limit | Upper Limit | Lower Limit | Upper Limit | Lower Limit | Upper Limit | Lower Limit |
1200 | 200 | 1200 | 200 | 0.7 | 0.1 | 0.07 | 0.01 | 1.5 | 0.3 |
A [MPa] | B [MPa] | n [-] | C [-] | m [-] | |||||
---|---|---|---|---|---|---|---|---|---|
Upper Limit | Lower Limit | Upper Limit | Lower Limit | Upper Limit | Lower Limit | Upper Limit | Lower Limit | Upper Limit | Lower Limit |
800 | 650 | 1200 | 800 | 0.3 | 0.1 | 0.05 | 0.02 | 1.0 | 0.4 |
Constitutive Parameters | ||||
---|---|---|---|---|
A [MPa] | B [MPa] | n | C | m |
726 | 943 | 0.20435 | 0.0472 | 0.8 |
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Storchak, M. Determination of Chip Compression Ratio for the Orthogonal Cutting Process. J. Manuf. Mater. Process. 2024, 8, 190. https://doi.org/10.3390/jmmp8050190
Storchak M. Determination of Chip Compression Ratio for the Orthogonal Cutting Process. Journal of Manufacturing and Materials Processing. 2024; 8(5):190. https://doi.org/10.3390/jmmp8050190
Chicago/Turabian StyleStorchak, Michael. 2024. "Determination of Chip Compression Ratio for the Orthogonal Cutting Process" Journal of Manufacturing and Materials Processing 8, no. 5: 190. https://doi.org/10.3390/jmmp8050190